Samuel asks this question to emphasize that obedience is much more important than sacrifice. This can be translated as a statement. Alternate translation: "Yahweh does not delight in burnt offerings and sacrifices as much as in obeying his voice!" (See: [[rc://en/ta/man/jit/figs-rquestion]])
Here "voice" refers to the commands that Yahweh spoke. Alternate translation: "the things that Yahweh commanded" (See: [[rc://en/ta/man/jit/figs-metonymy]])